DE3143801A1 - CRANE CAR - Google Patents

Description

The present patent application is one of the following four patent applications, all filed on the same day:

Lawyer file: Title:

P 16 740 crane truck

P 16 74'I crane truck with telescopic

Extending supports and power operated screw assemblies therefor P 16 742 - crane with stabilization

Extending supports and jacking winches that can be positioned vertically

P 16 743 crane with power-operated

χ 5 extending supports and one

Locking device therefor.

The content of the remaining three patent applications is incorporated by express reference in the disclosure of the present patent application included.

GRÜNECKER, KINKELDEY, STOCKMAIR & PARTNER

A. GRÜNECKER. OPl-JNG.

OR. H. KINKELDEY. öpu-ing.

DR. W. STOCKMAIR. c »PL.-iNG., AeE. (CAi_TECH> DR. K. SCHUMANN, »pl-phys

P. H. JAKOB. QPL-ING DR. G. BEZOLD. dih_-chem.

W. MEISTER, DPU.-ING

H. HILGERS. opl-ing DR. H. MEYER-PLATH, cxpl-img.

8000 MUNICH 22 MAXIMILIANSTRASSE 43

P 16 740

CRANE WAGONS

The present invention relates to traveling cranes or crane trucks, and in particular those that are self-propelled and have a pivotable upper part of which from a telescopically extendable boom extends. These prior art devices have numerous Types of main frames and combinations of front, Rear and transverse extending supports on to stabilize the crane, when it is in the position in which the boom is in operation. Examples of such facilities from the prior art are in US Pat. No. 3,854,595 of .17. December 1974 (Kuhn) shown where a crane truck is disclosed having a central portion from which transversely extending extension supports pivot out can, and which incidentally a conventional undercarriage used; US Pat. No. 2,914,194 of November 29, 1959 (Brown), where also a conventional driving under-

TELEf = ON (O 69) 223362

TELEX 05-29 380

frame is used, and U.S. Patent 4,160,558 of

July 10, 1979 (Fritsch), where in the middle attached scissor-like Extending supports and a main frame with a rectangular cross-section are used.

The present invention provides an improved, elongated main frame for a crane truck, this frame being tubular with a rectangular cross-section and having a trough arranged along the length of the frame in the central position. The elongated main frame not only serves as a chassis for the crane truck, but also acts as an elongated extending support, which has a jacking winch engaged with the ground at both the front and rear ends, around the crane in the fore and aft direction to stabilize when the boom is in operation. A transversely pivotable extension support is arranged on each of the opposite sides of the tub to stabilize the crane in the transverse direction. The invention provides one

Main frame of the above type, being tub and front and Rear portion of the main frame are made to have a high strength-to-weight ratio, which is able to deliver high, concentrated loads efficiently and efficiently to the four outriggers

to transfer formed stabilization devices.

A more specific aspect of the invention relates to a crane truck of the above type having a transmission that

is arranged along its bottom to drive power 30th

to the ground engaging wheels and to drive power through the tub of the main frame and received from a power source mounted on a rotatable superstructure on top of the main frame

is. An extendable boom is vertical from one 35

Side of the superstructure can be arranged starting from, while the other side of the superstructure is an overhanging, truss-like structure Has framework in which the power source, tanks, compressor and winches or cable winches and other, essential com-

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components of the crane are arranged, which all serves as a counterweight for the boom, which stands out from the other Side of the superstructure extends from.

Another, more specific aspect of the invention relates to such a crane truck in which the power drive from the power source on the superstructure a right-angled gear arrangement provided with a cardan joint through the tub and up to a gear or a power transmission, which is on the underside of the main frame, and a swivel connector is also in the tub and around the power drive arranged around, with between the superstructure and the main frame compressed air and electricity.

These and other features and advantages of the present invention will become apparent below as the disclosure proceeds, with SQf referring to the accompanying drawings will.

In these drawings is

Fig. 1 is a view of a crane truck embodying the present Invention embodied, from the left, with the outriggers in the position

are pivoted along the main frame and the crane is shown in the transport mode is,

^ ⁰ Fig. 2 is a rear view of the shown in Fig. 1

Crane, but according to the illustration, the transverse Ausfahrstutζen pivoted outward and the four outrigger jacks are able to use them with. to the

Engage the ground and the crane is operational,

/ ff

Fig. 3 is a left side view of the main frame of the crane,

Fig. 4 is a plan view of the main frame shown in Fig. 3,

Fig. 5 is a left view of the front section

of the main frame shown in Fig. 3, but on a slightly enlarged scale, 10

Fig. 6 is a top plan view of the front portion of the frame shown in Fig. 5;

7 is a left side view of the rear portion of the main frame shown in FIG

mens, but on a larger scale _e

Figure 8 is a plan view of the rear portion

of the main frame shown in FIG. 7, 20

9 is a plan view of the main frame _{r of} the in

In accordance with the present invention is made, as shown the transverse props are in the outwardly extending position and those with ground-engaging devices in the form of wheels for the inventive Crane present,

Fig. 10 is an enlarged bottom view of the middle

Section of the main frame, with the tub with certain parts for clarity shown broken up 'and part of the

Front and rear sections in exploded

position with respect to the tub is shown,

11 is a partial plan view of the central section of the main frame when the front and

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Are attached to the rear section of the tub, further including a portion of the top plate for purposes of clarity in FIGS

Drawings shown broken away, 5

Fig. 12 is a cross-sectional view taken along

Line 12-12 in Figure 11 was made and shows the rectangular tubular structure of the front section of the main frame, 10

Fig. 13 is a cross-sectional view taken along line 13-13 in Fig. 11 and showing Rectangular tube cross-sectional shape of the rear

Section of the frame shows 15

14 is a cross-sectional view taken through the tub of the main frame, generally along line 14-14

in Fig. 11, the device for Schwonk-

attachment of the transverse aur. driving support and also

the inner panel structure or »sheet metal construction of the Tub are shown

Figure 15 is a cross-sectional view taken along line 15-15 in Figure 3, however on a larger scale,

16 is a cross-sectional view taken along line 16-

16 was made in Fig. 3, but in 30th

enlarged scale,

17 is a cross-sectional view taken along line

17-17 in Fig. 3, but in an enlarged scale,

18 is an exploded perspective view of the main frame, with the front section, the tub and the rear section of the main

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are shown in the frame,

19 is a partial perspective exploded view

of the tub housing, with a cylindrical Steel part as well as pairs of vertical, each other

cutting plates or sheets and the lower reinforcement plate are shown,

Fig. 20 is an exploded perspective view of part of the tub and a transverse extension telescope

headrest,

Fig. 21 is a top view of the extendable telescopic

support attached to the tub, 15

22 is a view of a vertical section, the longitudinal Line 22-22 in Fig. 21 was made,

23 shows a side view of a part of the main frame ken, with certain parts removed or broken off for clarity and wherein the upper structure with the overhanging framework for supporting the power source and also the transmission for driving the ground-engaging wheels and

the power connection between gearbox and power source are shown,

24 is a perspective view of the superstructure and FIG

its frame structure as shown in FIG ! Sty

Fig. 25 is a view of a vertical section of the vertical arranged power connection between the transmission and the power source, but in enlarged scale from that shown in Fig. 23, including the rotary connector for compressed air and electrical

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see lines between the superstructure and the

lower main frame are shown,

26 is an enlarged side view of the transmission and the clutch shown in Fig. 23 are

and

FIG. 27 is a top plan view of a portion of the crane shown in FIG. 23, the view generally shown from line 27-27 in FIG

however, certain parts are removed for clarity.

The preferred embodiment will now be described and here first the general structure.

The general structure of selbstfahrcnden crane trolley C _r of embodying the present invention is shown in Fig. T and 2, and comprises an elongate main frame ² ^ 1, which comprises a tubular front portion 2 and a tubular rear portion 3, both of which have rectangular cross-section and made of steel plates welded together. The main frame also includes a central tier pan 4 to which the adjacent ends of the front and rear sections are welded to form a main frame unit. Passing with ground engaging means .. 6 in the form of wheels are arranged on the lower portion of the main frame and attached,

whereby the crane transports from one job site to another via the motorway or other roads or terrain can be. A pair of transversely extendable props 10 and 12 are of the left and right Side of the main frame and are, more precisely,

pivotable on their respective sides of the tub of the main frame as will be seen in more detail. These outriggers are from the transport position shown in Fig. 1 is shown, and in which they are generally parallel

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IeI ^ ZtSn main frame and extend along it, in ir -, - "^^ gendeine a number of positions in which they are transversely outward from the main frame extend as shown in Figures 2 and 9 to stabilize the crane truck when the boom is in operation is.

A vertically extendable, ground-engaging one Jacking winch 13 ist.sowohl at the front as well as at the rear end of the main frame and also at each of the Arranged outer ends of the two extending supports so that four jacking winches arranged at a large distance from one another are provided to stabilize the crane against tipping over when the boom is in the working position.

The crane also comprises a superstructure I4 _r which is mounted pivotably about a vertical axis 15 on the upper portion of the tub and is able to rotate through 360 °. This superstructure, as shown in Fig. 23, comprises a cantilevered frame structure 16 which protrudes from one side of the superstructure. An extendable, telescopic telescopic boom 20 can be pivoted about a horizontal shaft 22 at the upper end of the superstructure in such a way that

that the boom can be arranged vertically around the horizontal axis 22. The boom comprises several telescopic sections, so that its free end, which includes the boom tip 24 (Fig. 1), extended many meters into the air can be. It should be noted that the

Cantilever 20 extends from that side of the superstructure, which is opposite the side of the superstructure from which the frame structure "16 extends. Certain essential elements of the crane are attached to the superstructure, such as the power source E, which is in the form of a

internal combustion engine can be present, an air compressor 25, Fuel tank 27, hydraulic tank 26 (Figs. 1 and 2), winches 30 and other relatively heavy, conventional pieces of equipment. In this way, the engine E and the

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other, relatively heavier components effective,
to counterbalance the weight of the boom, which is from
the other side of the superstructure, as will be seen more fully later.

The boom itself can be of conventional construction,
and further description thereof does not appear necessary or desirable here except to note that when it is fully extended on a crane in which the present invention is particularly useful, it is over 100 meters (several hundred feet ) can reach. The boom will go through at any desired angle
the large hydraulic cylinder 32 is raised and lowered, which can be pivoted about a horizontal axis 33 on the superstructure.

* ° is brought, and also attached pivotably at its front end at the point 34 (Fig. 1) at a point in the course of the longitudinal extension of the base portion 35 of the boom
is. A load rope 36 runs from the winch in a known manner

30 from via a conventional hook 38.
20th

An operator cabin 40 is at the front
Arranged at the end of the main frame, and in this the operator for driving the crane in the transport mode is accommodated. Another cabin 42 for one

Operator with suitable control means is located on the superstructure and is used to control the various To operate components of the boom and crane when the crane is in work mode.

The main frame is now dealt with. Reference is made again to the elongated main frame 1 (Fig. 3, 4 and 9); the front section 2 is longer than the rear section 3, the section 2 for example having a length

7.62 meters from vertical axis 15,
35

while section 3 is approximately 4,572 meters in length

from the axis 15 is from. Taper both sections 2 and 3 generally towards a smaller cross-sectional area towards their outer ends, with an equal

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shaped tension and strength along the sections of the tub 4 are secured out and out towards the outer ends. As shown in Fig. 3, the top is Surface of the front portion 2 inclined downward from point 41 in an outward direction, and the portion 3 is inclined downwards from point 43 on its upper side. As shown in Fig. 4, the taper Frame sections inward as well, over at least a portion of their length as they move in extend in an outward direction, the section 2 tapering from point 44, while the shorter Section 3 is tapered generally along the major part of its length.

The entire crane truck contemplated by the present invention, and particularly its main frame constructed to provide a particularly high strength to weight ratio, and it is a Crane provided that has exceptional reach and load bearing ability considering the weight of the Crane is considering.

As a result, the crane is capable of rapid transport over motorways or roads and delivers at the same time exceptional stability and usability, especially when the boom is fully extended. That The weight and the overall width of the crane are in accordance with the existing standards for road traffic.

Reference is now made to Figures 5 and 6; the The front portion of the main frame includes a pair of horizontally spaced vertical panels or panels. Sheets which form side walls 46 and 48 which extend along the entire length of the front section extend. An upper plate 49 and a lower plate 50 are provided which are attached to the adjacent edges of the Side walls are welded along the entire length of the front section and here a tubular

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shaped, rectangular front section 2 form. The rear section 3 is constructed in a similar manner and has vertical side walls 52 and 54 which are attached to the upper plate 55 and the lower plate 56 are welded. A mounting device 60 is attached along the lower side of the frame sections / around those with the floor in FIG Engaging stationary wheels 6 by means of conventional, resilient mounting devices 61 (Fig. 1) to attach which are attached to the struts 60. The struts 60 are attached to wishbones 62 (FIGS. 15, 17), which in turn are rigid handlebars, through downwards and outwards inclined struts 63, all of which in a suitable manner are welded together.

it is noted that both the front and rear sections Has reinforcement sheets, the lengthways both the upper and lower sheets and along each ■ outer edge thereof are welded. More precisely, are Reinforcement plates 64 and 65 welded to the upper plate 49, and shorter reinforcement plates 64a and 65a are attached to the lower plate 50 of the front section (FIGS 6) welded on. Reinforcing plates 66 and 67 are welded to the upper plate 55 on the rear section and shorter ones Plates 66a and 67a are welded to the lower plate 56 (FIGS. 7, 8, 12 and 13). These reinforcement plates extend along the major part of the length of their respective frame sections and converge or decrease in width when they move towards the outer

Approach the ends of the frame sections mentioned. 30th

Relatively thin sheets can be used to manufacture sections 2 and 3 together with the use of vertical, channel-shaped stiffeners 68 are used, which are arranged on the thin side walls at a distance Places are welded along their length.

A particularly high strength-to-weight ratio is achieved with the above arrangement for the front and rear

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Section of the frame achieved what the combination comprises that the frame sections decrease in cross-sectional area / and specifically in width as they expand Approach the outer ends of the frame sections to which they are welded - When the crane is under load, then the upper reinforcement plates are put under pressure, and a good section modulus for the Frame sections is provided to be uniform Tension along the length of this upright.tzuer-I ^ keep. The reinforcement plates also strengthen the corners of the frame sections, and by making them uniform Providing tension, they allow the weight of the main frame to be kept to a minimum for the loads which he is exposed to. A desired stiffness and a desired ratio of strength to weight is achieved which are constant along the length extension of the frame sections, resulting in a weight of about 243 kg / m.

The specially shaped and designed main frame with a rectangular cross-section helps ensure that you are able to is to limit the overall height of the machine by using a power transmission system allowed for the drive wheels, which is arranged under the main frame, as well as the recordings of the Axes of the drive wheels' and the transverse pivoting movement of the extending supports.

The main frame includes the tub 4, on which the adjacent

The bare ends of the front and rear portions of the main frame are welded, as best shown in FIGS. 10 and 11 is shown. The tub is made of steel and comprises a cylindrical steel part 70, which with its longitudinal axis 15 is arranged in the vertical direction, i.e., the

Tray is circular when viewed in plan view .A pair of spaced vertical plates 71 and _r 72 intersect in the lengthwise direction inside the cylindrical steel member and are welded thereto determined, as

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is shown. It is noted that the two, at a distance arranged, vertical side walls 46 and 48 of the frame front section 2 and the two horizontally spaced side walls 52 and 54 of the rear frame section 3 are aligned in the longitudinal direction, namely on the vertical sheets 71 and 72 in the tub, which together have a pair of continuous vertical side walls along the Form the length extension of the main frame. The side walls of the front and rear sections are on the outer top

^ surface of the tub welded on. The tub of the main frame is also of exceptional strength for her Weight is provided and is able to take and transfer high, concentrated loads to which it is subjected through the use of another pair with

Distance between separately arranged, transverse vertical sheets 74 and 76 .. which extend in the transverse direction within the cylindrical trough and which extend in the longitudinal direction extending vertical sheets 71 and 72 cut in the tub and welded to it. Which

Transversely extending sheets 74 and 76 are also welded to the inside of the cylindrical part 70. The tub also includes a horizontal, lower reinforcement plate 78 (Fig. 19) attached to the lower portion of the cylindrical part 70 is welded to the

Further solidify the tub structure.

Certain sections were made from sheet metal 78, as well as from cut out the vertical metal sheets inside the tub,

as shown in Fig. 19 to reduce the weight there, 30th

where this is possible without having to give up strength.

The tub assembly also includes a horizontal upper panel 80 and a horizontal lower panel 81, which both overlap

extend transversely beyond each side of the tub; 35

this upper and lower plate is welded to the upper and lower ends of the cylindrical part 70 to a to form a rigid, uniform construction. As in Fig. 10, 11, 14 and 18 are additional frame panels

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\ or frame corner pieces 82 made of steel are provided between the upper and lower sheet metal 80 and 81 and are welded to them. The upper and lower sheets 80 and 81 of the tub also have (Figs. 10, 11, 18 and 19) extensions 80a and 81a which extend in a forward and backward direction, respectively. These extensions overlap the inner ends of the front and rear sections of the main frame and end up against the reinforcement plates (Fig. 11).

A steel pipe 83 is connected between the sheets 80 and 81 welded on each side of the tub to provide a pivoting attachment for attaching the extension supports (to be described) on each side of the main frame.

The one that can be arranged vertically, with the bottom in Engaging standing jacking winch 13 provided at both the front and rear ends of the main frame is, is between a lower position, with which it engages the ground when the crane is in its mode of operation in which it is handling loads, and an upper position in which it is clear of the ground when the crane is in its transport mode located, can be arranged.

A device (Figs. 5 and 6) is at the outer ends of the main frame is provided for the attachment of these jacking winches, and this device comprises a tubular Bearing 86 which is rigidly welded into the support plates 87 which are arranged between the side walls of the frame sections are. The structure and power operation of these jacks is described in the co-pending US patent application No. 203,943, filed Nov. 7, 1980, jointly with the present application, and es Reference is made to this arrangement when describing the construction and operation of these jacks either is deemed necessary or desirable.

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The main frame provided by the present invention is, is thus of elongated and relatively narrow shape, and has a rectangular tube cross-section and decreases in its "cross-sectional dimension towards the outer ends of the main frame »

The main frame forms the main backbone and acts as the chassis for the crane truck. The frame itself forms an extendable support, which is in a direction extends both forwards and backwards when its jacking winches 13 are extended downwards, to stabilize the crane against tipping over forwards and backwards.

With the construction of the front and rear sections as described above, as well as with the above tub construction, the thrust and moment loads that are applied to it are mnrattelbar on the floor through the front and rear baths of the main frame and also across the - two in the transverse direction assignable, now to be described extending props transferred.

Are you now discussing the transverse extending supports? the Transverse props 10 and 12 are identical in construction and reference is made to only one of them - the prop 10 is shown in detail in FIGS. 20-22 and includes an outer, generally hollow and elongated Box 84 and an elongated inner support 86 which telescopically within, the box 84 is mounted. Of the ·

The box is made of steel sheets, namely side sheets

84a and 84b and top and bottom plates 84c and 84d, the are all welded together. Vertical, channel-shaped stiffeners 85 are welded to spaced-apart spaces along the side walls. The carrier 86 35

is constructed generally similar to box 84.

The box 84 of each extension support has an interior End 87 on which is pivotable about a vertical axis

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is attached to the tub as follows: The inner end 87 of the extending support is in an upper part 88 and a bifurcated lower portion 89, and a pivot shaft 94 extends through aligned holes in the upper and lower part and also through the tube 83 which extends through the sides of the tub. A screw or bolt assembly 95 works together with an upper and lower cover 96 and 97, which are attached to the Ends of the shaft 94 are arranged, securing the shaft 94 in an assembled relationship.

It is noted that the inner box end portions 88 and 89 extend beyond the top and bottom surfaces of the tub and embrace this. Parts 88 and 89 are

¹ ^ thus vertically separated from each other by a considerable distance in order to provide a stable pivot connection for the extendable supports to the tub. The bifurcated inner ends of the props ensure that the tub is encompassed, tine, provide a well-spaced support in the vertical direction as well as a good load-bearing capacity of the prop. In operation, when the extension supports are loaded, a shear load is applied which is applied to the bifurcated yoke connection with the tub. The forked arrangement

of the inner end of the extension support together with the pivot shaft that extends through it prevents this forked ends tend to open or spread apart when the load is applied. The middle vertical Shaft 94 and screw assembly 95 effect

distributing the load between the upper and lower fork ends and delivering a solid unit with good strength, together with the outer, transverse sections of the tub.

Construction and installation of the deployment supports of the present invention, i.e. their vertical pivot connection for transverse pivoting movement. from the main frame "along with its ability to telescope out

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a transverse range of 7.62 meters from the Center the frame tub out to each side of the crane.

The ones that come into engagement with the ground and can be arranged vertically Jacking winches 13 attached to each of the outer ends of the Extending supports are arranged, namely at the outer end of the carrier portion 86 can be lowered into one position in which they are in engagement with the ground, if the boom of the crane is in the handling of Loads in operation. These jacks can be raised so that they come free from the ground when the extending supports in the longitudinal direction of the main frame of the Crane to be swiveled for ground transport.

as shown in Fig. 9, the extension supports 10 and 12 pivoted into various transverse positions relative to the main frame and locked in any desired position or blocked. This locking process is effected by a power-operated piston tappet 98, the is arranged on the tub (Fig. 20) and in engagement with any of a number of holes 100a arranged in an arcuate plate 100, and in turn is attached to the inner end of the prop.

The rear section 3 of the main frame is shorter than the front section 2, which enables the crane to be there where necessary to be moved even closer to a building, so that, for example, the boom can put a load on the building.

When operating the boom, depending on the Pivoting position of the boom when handling the load, the outriggers at any of a number of infinite Be arranged in layers. However, certain, optimal transverse positions have been determined 'in order to achieve maximum stability to be delivered for the crane, depending on the specific slewing range in which the boom is active.

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_R gene as a result of non-symmetric lengths of front and rear portions of the main frame and also as a result of the fact that the operator can plan the boom in different contexts to actuation ', such as over a range of 360 ° away _r over 180 ° to the rear towards the machine or over 180 ° at the front of the machine, the optimal transverse position of the cross jib can vary depending on the operating mode in which the crane is to be used. For example, in the frame arrangement made in accordance with the present invention, the length of the front section, ie from the front jacking winch 13 to the center of the tub at point T5, where the extending supports are pivotably articulated, is approximately 7.62 meters. The distance of the rear end of the frame, i.e. from the center of the hull 15 to the rear jacking winch 13, is about 4.57 meters. This ratio can vary a little depending on: the size of the crane, but a good general arrangement is that the pivot point of the extending supports is at a point which is approximately 60% closer to the rear end of the main frame than to the front end of the main frame. With a frame of this type, the optimal positions of the outriggers are generally at 65 °, 79 ° and 108 ° (Fig. 9), measured from the longitudinal centerline of the rear portion of the main frame _f, and these positions of the outriggers provide maximum stability under the respective selected operating condition. If this section of the frame is shorter to the rear from the pivot points of the extension supports, then the least degree of stability is in that direction to the rear, and therefore the extension supports are adjusted slightly to the rear, at the angle of about 65 ° mentioned . If 360 ° operation of the boom is used, then a position of the outriggers at about 79 ° is preferred. If a boom field of rotation of 180 ° above the rear of the crane is desired, then the position of the outriggers at 65 ° would be desirable. If a movement is used in which the

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Boom beyond the front end of the main frame pivots _r

then the outriggers are set at an angle of about 108 °, calculated from the rear center line of the crane.
5

Power-operated threaded spindle extension devices SE (Fig. 22) for the driven extension of the telescopic extension supports are shown in U.S. Patent Application No. 203,942 and described, filed November 7, 1980. A powered swing device PS (Fig. 22) for swinging of the outriggers in their desired positions are shown in U.S. Patent Application No. 203,944, filed on November 7, 1980. Reference can be made to those applications which are assigned to an applicant or owner which is consistent with that of the present invention.

The superstructure will now be described; as clearly shown in Fig. 23 to 25: the superstructure 14 is rotatably mounted on a low-friction layer 98 (FIG. 23), which on a flat bearing ring 99 runs (Fig. 4, 11, 18 and 20), which is welded to the upper side of the tub. The superstructure has a foreissegment-like base plate 101 on which a pair of spaced apart, double-walled members 102 are welded, extending generally from the one Extend the side of the superstructure out as shown; Fig. 24 shows this even better = the superstructure also includes the overhanging frame structure 16, which is welded together a series of tubular members 103 as clearly shown in FIG. The engine E is

arranged outside in the overhanging frame structure 16 and provides drive sources to drive the drive wheels. The longitudinal center line of the engine is on the longitudinal center line the superstructure arranged to accommodate the engine weight and torque counteractions equalize on both sides in the same way. There is also a balance of symmetry and weight achieved by arranging the hydraulic tank 26 on the side opposite the fuel tank 27.

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The motor is arranged as far outside as possible in the frame structure 16 in order to counterbalance the boom when Establish crane operation. Other essential components are also arranged on the frame structure of the superstructure, like the aforementioned engine, a compressor, fuel tanks and winches, and these also counterbalance the boom 20, the requirement being more conventional Counterweights are avoided.

Power can therefore be obtained directly from the standard rear crankshaft position of the motor through the connecting shaft 104, via a hydraulic pump 105, which supplies the drive power to the upper crane functions, and through the shaft 104a, and can then be fed into the conventional, right-angled gears or reversing gears 106 are initiated. The 90 ° deflection gear includes conventional bevel gear sets 106a, which drive a vertically arranged drive shaft 107, which is centered extends through the tub and the lower end of which is connected to another 90 ° bevel gear deflection gear 108, which is arranged under the main frame. The drive power is then transferred from the 90 ° deflection gear 108 to the clutch 11o transmitted and into the gearbox 111 of the entire Power transmission initiated. Cardan shafts .112 and 113 then lead the drive power to differentials 114 and 115 of the drive wheels in a conventional manner Further.

A hydraulic pump 117 (Figs. 23, 26) _r driven by the 0 bevel gear set 108a is located under the main frame and provides the drive power to operate the outriggers as described in the above-mentioned pending U.S. applications.

Universal joints 116 at the ends of shafts 104, 104a and 107 allow some degree of misalignment and allow the use of an open center structure between the superstructure and the main frame, with a tube

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123, which extends down into the tub, and an air rotating ring and collector ring 121, which will now be described is.

Fig. 25 shows the device for forming a rotary connection between the superstructure and the main frame for Compressed air and electrical lines. The air compressor 25, which is attached to and driven by the engine, supplies compressed air to the braking system (not shown) for the wheels on the main frame. This compressed air is through the larger annular groove or the annular channel 122 supplied to the Perimeter of the tube 123 is formed, which is attached to the lower plate 101 of the superstructure. The tube 123 is on the plate 101 together with the housing 124 of the upper 90 ° -ümlenkgetriebes 106 by means of a screw connection 126 attached, which engages in the plate 101 in a screw connection. Another, smaller air duct 128 is formed by the annular groove around the tube 123 and delivers a duct for air coming from the lower air damper {not shown) comes from, which is operated from the driver's cab 4 0 (if the transport mode is present), and delivers this air back to the engine. Appropriate grooves and O-ring sealing means 130 are also between Tube 123 and a sleeve 134 are provided.

An electrical collector ring 138 acts in cooperation with the sleeve 134 to provide a continuous electrical To deliver power transmission between the superstructure and the main frame via electrical conductors 140, which are electrically connected to the Collector 138 and also attached to ring 133, and electrical cables 145 connected thereto. the Relative rotation is allowed between the collector ring 134 and the ring 138 so that a constant electrical Contact is established. A series of circumferentially spaced vertical struts 148, which along the course of their Length extension are attached to the upper plate 81 of the tub, are used to rotate the cuff 134 by means intermeshing slot and pin connectors

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fertilize 150 to prevent, and also effect the prevention the rotation of the lower ring 144 to which they are attached.

The rotary connection described above between air lines and electrical lines allows a considerable Misalignment with respect to the superstructure of the main frame, both vertically and horizontally, and it is as a vibration damping system effective in between.

Claims (3)

Expectations 1 = 1 elongated main frame for a crane truck _r with a tubular front section (2) \ χηά a tubular ilintorabachnite I- (.J), dL <! bcrlclc rectangle J <j cn Uuor section and are made of steel sheets welded together, the front and rear sections each ending in an outer front end and an outer rear end and the sections each tapering towards their front and rear ends to a smaller cross-sectional area, characterized by "that - The frame has a circular trough (4) ,, the is arranged between the sections and rigidly attached to them, the tub in plan view is generally circular, -2- TELEPHONE (039) 22 2862 TEUEX 05-29380 - An attachment device (60) is provided on the frame is to mount floor-engaging means along the lower side of the frame, and . ■ - means (86) from the front and rear End of the frame is carried to vertically positionable floor-engaging jacks (13) to be attached. 2. main frame (1) according to claim 1, characterized in that g e that the tub comprises a cylindrical steel part (70), the axis (15) in vertical Direction is arranged, a pair of spaced apart, vertical plates (71, 72), which in In the longitudinal direction traverse the interior of the cylindrical steel part (70) and are welded to it, the Frame front section (2) and the frame rear section (3) a pair of spaced apart, separated, vertical side walls (46, 48, 52, 54) which in longitudinal alignment on the vertical sheets in the cylindrical Part standing around a pair of continuous, vertical side walls along the length of the main frame (1) to form. 3. Main frame according to claim 1, characterized in that the trough (70) is a horizontal one Comprises sheet metal (80) secured across the top of the tub and also a horizontal sheet metal (81), which going across the bottom of the tub is attached with the horizontal sheets extending transversely beyond each side of the tub, as well a steel tube (83), which is welded between the protruding upper and lower sheets on each side of the tub is to do this with a swivel mounting device for attaching extension supports (10, 12) on each side of the main frame to deliver. -3- ** *: "" "" 3H3801 .4. "Main frame according to claim 2, characterized in that the trough (70) is a horizontal Comprises sheet metal (80) secured across the top of the tub and also a horizontal sheet metal (81), which is fastened across the underside of the tub, with the horizontal sheets extending in the transverse direction extend beyond each side of the tub, as well as a steel tube (83), which between the protruding upper and lower sheets on each side of the tub is welded to this a pivot mounting device to be supplied for attaching extension supports (10, 12) to each side of the main frame. 5. Main frame according to claim 2, marked! 5 net by a pair of spaced, vertical sheets (74 _y 76) which extend in the transverse direction within the cylindrical part and which extend in the longitudinal direction. tung extending vertical plates (71, 72) cut in this portion, the transversely erstrecken- "" ■ the plates (74, 76) is adjoined by longitudinally extending plates (71, 72) in the tub and also the inside - "-" side of the tub are welded. 6. Main frame according to claim 1, characterized in that the front (2) and rear sections ^{g ο ke η η 2 ^} (3) each have reinforcement plates (64, 65 _f 66, 67) which are welded along their upper sides (49 _e 50) and generally extend lengthways herewith, and that the reinforcement plates (64, 65, 66, 67 ) converge in breadth when they join the outer Approach the ends of the sections. "7. Elongated main frame for a crane truck, with a tubular front section (2) and a tubular rear section (3), both of which are rectangular in cross-section have and are made of welded steel sheets (46, 48, 49, 50, 52, 54, 55, 56), wherein Front and rear sections each in an outer front "" "" "" "" 3U3801 renal and rear end ends, characterized by the following features: - The frame comprises a circular trough (4) which arranged between the sections (2, 3) and rigid 5 attached to them, - The tub comprises a cylindrical steel part (70) which arranged with its axis (15) in the vertical direction, a pair of spaced apart, separated - ^ q sheets (71, 72), which in the longitudinal direction of the interior traverse the cylindrical steel part and are welded to it, - the frame front section (2) and the frame rear section (3) each have a pair of spaced apart ¹ ^ ter, separate, vertical side walls (46, 48, 52, 54), which are in longitudinal alignment with the vertical sheets (71, 72) in the cylindrical part (4), around a pair of continuous ', vertical side walls along the length extension to form the main frame, - a pair of spaced, vertical sheets (74, 76) extend transversely within the cylindrical part -and intersect in the longitudinal direction extending vertical sheets in the part, - The metal sheets (74, 76) extending in the transverse direction are on the metal sheets extending in the longitudinal direction (71, 72) in the tub (4) and also welded to the inside of the tub, " - the tray also comprises a horizontal sheet (80), 30th which is fixed over the top of the tub, and also a horizontal sheet (81), which is attached over the underside of the tub, - - the horizontal sheets extend in the transverse direction beyond each side of the tub, - A steel tube (83) is placed over the protruding upper and lower sheets on each side of the tub. —5— welds around a swivel attachment device for attaching extension supports (10, 12) to form each side of the main frame, - An attachment device (60) on the frame for the 5th Attachment of engaging with the ground Facilities along the underside of the frame, and -. a device (86), which from the front and rear , ₀ end of the frame to mount vertically positionable floor-engaging jacks (13). 8. Frame according to claim 7, characterized in that g e k e η η - •, κ indicates that the sections (2, 3) each taper to a smaller cross-sectional area towards their respective outer end, and that reinforcement plates (64, 65, 66, 67) along the top (49, 50) of the front and Rear section are welded and generally extend together in length herewith, the reinforcement plates (64, 65, 66, 67) converging in width as they approach the outer ends of the sections in order to achieve good strength: s- / Gßw.asst - Vc ⁱ rl) to deliver for the main frame (D. 9. crane truck, characterized by the following characteristics: an elongated main frame (1) with a front section (2) and a rear section (3) , which ^ ® are both made of steel sheets in a rectangular, tubular shape and each terminate in a front end and a rear end, the Sections each taper to a smaller cross-sectional area in the direction of their front and rear ends, the frame comprises a circular trough (4) which is arranged between the sections and rigidly attached to them is attached, the tub in plan view -6- is generally circular, - ground-engaging devices (6), which are arranged along the lower side of the frame sections to allow the crane to travel over ground wear, vertically positionable jacks (13) _s attached near the front and rear ends of the frame and engageable with the ground to rigidly support the front and rear ends of the frame on the ground, the frame being both the front as well as the rear extending support is effective for the crane, a transverse extendable prop (10, 12) for each Side of the frame, each extension support being attached to the tub (4) so as to be pivotable about a vertical axis is and each extension support (10, 12) around the axis between (1) a position in the longitudinal direction of the frame and ' 20th free vc-ra floor for crane transport mode (Fig. 1) and (2) is pivotable to a position in which it is in the transverse direction (Fig. 2) from the frame to the outside in contact with the ground at the outer end of the extension Extend the support to stabilize the crane against tipping sideways during crane operation, an upper superstructure (14) which can be rotated on the tub (4) is arranged to rotate about a vertical axis, and a boom (20) attached to the superstructure (14) about a horizontal axis (22) for the vertical pivoting movement Direction of the boom with respect to the superstructure and gp- for horizontal rotation is hereby attached. 10. Crane according to claim 9, characterized in that the extending supports (10, 12) each have an inner end that pivots about -7- "'·" - "' - · 3-1 438p 1. the vertical axis is and is bifurcated into an upper part and a lower part, which are above or 'is arranged below the tub (4), as well as a pivot shaft (94), which extends through the parts and the tub (4)' extends and about which the extension supports can pivot, the parts being a vertical distance from one another have in order to achieve a stable connection for the extending supports (10, 12) with the tub (4), and wherein the outriggers each have an outer end and a vertically positionable end that engages the ground bringable jacking winch (13) / which is attached to each of the outer ends of the extension supports (10, 12). 11. Crane according to claim 9, characterized in that the circular trough (4) comprises a cylindrical steel part (70) which is arranged with its axis in the vertical direction, a pair of spaced, vertical steel sheets (71, 72 ), which traverse the inside of the cylindrical steel * ® part (4) in the longitudinal direction and are welded to it, and that the frame front section (2) and the frame rear section (3) each have a pair of spaced, vertical side walls ( 46, 48, 52, 54) which stand in longitudinal alignment with the vertical sheets (71, 72) in the cylindrical part (4) to form a pair of continuous, vertical side walls along the length of the main frame (1). 12. Crane according to claim 9, characterized in that g e k e η η - draws that the tub (4) is a horizontal Sheet metal (80) secured across the top of the tub and also a horizontal sheet metal (81), which goes over the underside of the tub is attached, the horizontal sheets in transverse 35 extend out over each side of the tub (4). and a steel tube (83), which between the protruding upper and lower sheets are welded on each side of the tub to provide a swivel attachment - 8th- -δ device for attaching the extendable supports (10, -12) to be delivered on each side of the main frame (1). · 13. The crane of claim 11, characterized b by a pair of spaced, vertical plates (74, 76) which extend in the transverse direction inside of the cylindrical portion and extending in the longitudinal direction, vertical plates (71, 72) in the part cut, wherein the transversely extending sheets are welded to the longitudinally extending sheets in the tub and also to the inside of the tub. 14. Crane according to claim 9, characterized in that g eke η η - ¹ ^ zi-ichnet that the front and rear sections (2, 3) each have reinforcing plates (64, 65, 66, 67) which are welded along the upper sides and generally extend in the longitudinal direction together therewith, and that the reinforcing plates in the width converge when they get closer to the outer ends of the sections, in order to improve the strength / weight ratio of the sections (2, 3). 15. Crane according to claim 10, characterized in that g e k e η η ^ ° shows that the tub (4) has a horizontal sheet (80) which extends over the top of the tub is fixed across the board, and also a horizontal sheet metal (81), which is fastened over the underside of the tub, with the horizontal plates extending in the transverse direction Extend beyond each side of the tub, as well as a steel tube (83), which between the protruding upper and lower panels are welded to each side of the tub to provide a pivot mount to deliver, urti the pivot shaft (94) for attaching the 35 Extension supports (10, 12) on each side of the main frame (1) to record. 16. Crane according to claim 9, characterized in that g e k e η η - . 3H3801 shows that the superstructure (14) has a protruding Frame structure (16), which protrudes on one side of the superstructure, a power source (E), which is attached to the projecting frame structure (16), a power transmission device (112,113), which along the Underside of the main frame (1) is attached and with the with demi'.Boden in engagement devices (6) to whose drive is connected, a vertically arranged drive shaft (107), which extends through the tub (4) extends through, a 90 ° drive deflection device (108) which is connected between the power transmission device and the lower end of the drive shaft is, and another 90 ° drive U) nlenkeinrichtung (106), which is between the upper end of the drive shaft (107) and the power source (E) is connected, with the arm (20) extending outwards from the opposite Side of the superstructure (14) opposite that of the frame structure (15) extends and the power source (E) seeks to utilize the boom (20). 17. Crane according to claim 16, characterized through a tubular part (134, 123) in the tub (4) and around the drive shaft (107), which has a rotary connection (134 ^ 138) forms to compressed air and electrical Lines (145) between the main frame (1) and the superstructure (14) to transfer. 18. Self-propelled crane truck, marked by the following characteristics; an elongated main frame (1) with a front section (2) and a rear section (3), which both have a tubular and rectangular cross-section and are made from sheet steel plates, g ₅ which are welded together, with front and Rear section correspondingly in a front end and end at a rear end and the sections each extend to a smaller cross-sectional area in the direction of -10- -10-χ taper towards their front and rear ends, - The frame comprises a circular trough (4) which is arranged between the sections and rigid to them is attached, the tub in the plan view all- ^ is generally circular, - a superstructure (14) / which can be rotated on the tub for rotation mounted around a vertical axis, a telescopically extendable boom (20) attached to the superstructure (14) around a horizontal axis (22) to the vertical Pivoting movement of the boom (20) with respect to the superstructure and for horizontal rotation herewith attached is, - ground engaging means (6) arranged along the lower side of the frame sections are, - to carry the frame for driving over the ground, <- a performance scale (E), which with at least some _{nn of} the devices engaged with the ground (6) is connected to put them in rotary drive and drive the crane accordingly, - vertically positionable jacking winches (13), which mounted adjacent the front and rear ends of the frame and engageable with the floor, around rigidly the front and rear ends of the frame the ground, with the frame serving as both a front and a rear extending support for the crane is effective, and ; 30th j - a transverse extendable prop (10, 12) for each transverse side of the frame, with each outrigger around a vertical j axis is pivotably connected to the tub (4) and is pivotable about its named axis, namely between 35 (1) a position along the frame and free from the ground for crane travel, and (2) a position in which it is in the transverse direction -11- "* *" "" ~ 3H3801 device extend outward away from the frame and in contact with the ground at the outer end of the extending support stand to stabilize the crane against tipping sideways during crane operation, whereby each extension support can be extended telescopically. 19. Self-propelled crane truck according to claim 18, characterized in that the superstructure (14) has a cantilevered frame structure (16) attached to overhangs one side of the superstructure, a power source (E), which is mounted in the overhanging frame structure is a power transmission device (12, 13) which is attached to the underside of the main frame and extends along it and is connected to the ground-engaging means (6), to drive the crane, a vertically arranged drive shaft (107), which extends through the tub extends, a 90 ° deflection drive device (108), which is connected between the power transmission device and the lower end of the drive shaft (107), and another 90 ° deflection drive device (106), which is connected between the upper end of the drive shaft (107) and the power source (E), whereby the boom (20) from that side of the superstructure (14) extends which is opposite to the side of the frame structure (16), wherein the power source (E) seeks to to utilize the boom. 20. Crane according to claim 19, marked calibrated net through a tubular part (70) in the tub (4) and around said drive shaft (107), which forms a rotary connection (134.138), for compressed air and to transmit electrical lines (145) between the main frame (1) and the superstructure (14). 21. Self-propelled crane truck, g e k e η η is characterized by the following features: -12- - An elongated main frame (1) with a front section (2) and a rear section (3) with a tubular and rectangular cross-section, with front and rear sections correspondingly in a front end and end at a rear end, - A superstructure (14) which is attached to the main frame (1) so as to be rotatable about a vertical axis, - A telescopically extendable boom (20), which on ^ q Superstructure around a horizontal axis (22) to the vertical Pivoting movement of the boom (20) with respect to the superstructure (14) and for the rotary movement together with it an area of 360 ° is attached, vertically positionable jacking winches (13), which are mounted 15 "next to the front and rear ends of the frame and are engageable with the ground to the front and rear ends of the frame on the ground to be rigidly supported, the frame being effective both as a front and a rear extending support for the crane is, a transverse extendable support (-10, 12) for each transverse side of the frame, with each external extendable support pivotable about a vertical axis with the main frame (1) at an _O! _ Is connected, which is about 60% closer to the lower end than the front end, each of the said extension supports (10, 12) around their named axis is pivotable, between (1) a position along the frame and free from Floor for crane transport (Fig. 1), and (2) a position (Fig. 2) in which the extending support is in the transverse direction outward from the frame extends and is in contact with the ground at its outer end in order to prevent the crane from falling sideways. to stabilize tilting during crane operation, with each transverse extending support telescopic is and -13- Λ Λ f- j-. st φ ■ it * * 3.U3801 -13- - The outriggers are fixed at angles of about 65 °, 79 ° and 108 ° with respect to the longitudinal center line of the rear portion of the main frame (1) positioned when the boom (20) corresponding generally over the rear section of the main frame (1), over a working range of 360 ° of the boom above the main frame (1) and over the front section of the main frame (1) works.